1000322540 has 24 divisors (see below), whose sum is σ = 2400774432. Its totient is φ = 342967680.

The previous prime is 1000322537. The next prime is 1000322567. The reversal of 1000322540 is 452230001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3572441 + ... + 3572720.

It is an arithmetic number, because the mean of its divisors is an integer number (100032268).

Almost surely, 2^1000322540 is an apocalyptic number.

1000322540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000322540 is an abundant number, since it is smaller than the sum of its proper divisors (1400451892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000322540 is a wasteful number, since it uses less digits than its factorization.

1000322540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7145177 (or 7145175 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1000322540 is about 31627.8759957099. The cubic root of 1000322540 is about 1000.1075017763.

Adding to 1000322540 its reverse (452230001), we get a palindrome (1452552541).

The spelling of 1000322540 in words is "one billion, three hundred twenty-two thousand, five hundred forty".